JP2640341B2 - Transfer device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer device, and more particularly to a transfer device for a workpiece in an assembling device used for semiconductor assembly.

2. Description of the Related Art Conventionally, a plurality of assembling apparatuses are connected and arranged in parallel, and as a transporting apparatus for supplying a workpiece to these assembling apparatuses, for example, Japanese Patent Application Laid-Open No. 58-206132 (hereinafter, known examples) 1)
And Japanese Patent Publication No. 55-22215 (hereinafter referred to as known example 2)
The following are known.

This structure includes a single row of main conveyors, and a sub-conveyor that is disposed orthogonal to the main conveyors and supplies and discharges a workpiece to each assembling apparatus.
Particularly, in the publicly known example 2, the main conveyor and the sub-conveyor are disposed so as to cross each other, and a portion where the sub-conveyor crosses and faces is lower than the main conveyor.

[Problems to be Solved by the Invention] In the above-mentioned known example 1, since the sub-conveyor is merely disposed on the side of the main conveyor, the sub-conveyor is covered by the main conveyor and the sub-conveyor is covered by the main conveyor. A supply device for transferring the workpiece, for example, a supply device for transferring by vacuum suction is required.

As described above, since a special supply device is required, there is a problem that the device is inevitably expensive and quick delivery cannot be performed.

In this regard, in the known example 2, the sub-conveyor is disposed so as to intersect with the main conveyor. Therefore, if the sub-conveyor is raised and driven, the workpiece on the main conveyor rides on the sub-conveyor, And the problem as in the prior art 1 can be solved.

By the way, the sub-conveyor of the known example 2 includes an upstream conveyor for receiving a workpiece from the main conveyor, a downstream conveyor for delivering the workpiece to a conveyor arranged in parallel with the main conveyor, and It is composed of three conveyors, an upstream conveyor and an intermediate conveyor disposed between the downstream conveyors, and the upstream and downstream conveyors are configured to be independently movable up and down.

As described above, since the sub-conveyor of the known example 2 includes three conveyors, a large installation space is required and the size is increased. Further, since the three conveyors need to be driven to rotate by separate driving sources, the apparatus becomes expensive.

SUMMARY OF THE INVENTION An object of the present invention is to provide a transfer device that can be reduced in size and cost.

[Means for solving the problem]

In order to achieve the above object, a configuration of the present invention comprises a main conveyor for transporting a workpiece, and a main conveyor having one end crossing and facing the main conveyor to supply and discharge the workpiece to an assembling apparatus. The main conveyor and the sub-conveyor are crossed and opposed to each other, and the conveying device is configured such that one is lower than the other, and is rotatable substantially above the center of the sub-conveyor table. A supported rotating shaft, a plurality of drive pulleys fixed to the rotating shaft, a fixed shaft parallel to the rotating shaft and fixed to a sub-conveyor base below the rotating shaft, A first swing block rotatably supported and extending toward the main conveyor from the fixed shaft; and a first swing block rotatably supported by the fixed shaft and opposite to the first swing block from the fixed shaft. Extension A second swing block, first and second pulley support arms respectively fixed to the first and second swing blocks, and the first and second pulleys facing the drive pulley. First and second driven pulleys rotatably supported at ends of a pulley support arm, respectively, and first and second driven pulleys hung on the driving pulley and the first and second driven pulleys. A belt, a motor for driving the rotating shaft, and first and second driving means for independently rocking the first and second rocking blocks, wherein the main conveyor is in one row, The sub-conveyor includes a loader sub-conveyor that supplies a workpiece to an assembling apparatus, and an unloader sub-conveyor that discharges the workpiece from the assembling apparatus. The loader sub-conveyor includes the second belt. Two parts Two workpiece guide plates are disposed at right angles to the second belt so as to be able to temporarily hold the workpiece, and the workpiece at one end of the second pulley support arm is provided. The guide plate is arranged such that a surface with which the end face of the workpiece in the workpiece feeding direction by the second belt abuts is always higher than the second belt, and the other workpiece guide plate is The surface where the end face of the workpiece in the workpiece feeding direction by the second belt abuts is
When the second belt is lowered, it is higher than the second belt, and when the second belt is raised, it is lower than the second belt.

[Action]

When the rotating shaft is driven, the first and second belts on both the main conveyor side and the side opposite to the main conveyor side rotate. In this way, even if both belts rotate, the first and second belts are independently swingably supported about a fixed shaft disposed below the rotation shaft, so that both belts are supported. The swing of the belt can be controlled separately,
For example, it is possible to carry out the transfer from the main conveyor to the sub-conveyor and from the sub-conveyor to the transport line of the assembling apparatus. As described above, the sub-conveyor can be driven by one motor, and furthermore, the belt is slidably provided on both sides of the rotating shaft, so that the size and the cost of the apparatus can be reduced.

The workpiece is supplied from the main conveyor to the assembling apparatus via the loader sub-conveyor, and the workpiece which has been processed by the assembling apparatus is discharged from the unloader sub-conveyor to the main conveyor again. As described above, since the main conveyor is provided in one row, the configuration can be simplified and the space can be reduced.

In the second belt portion of the loader sub-conveyor, two workpiece guide plates are disposed at right angles to the second belt, and one of the second pulley support arms has a workpiece guide plate at an end. The workpiece guide plate is arranged such that a surface with which the end face of the workpiece in the workpiece feed direction by the second belt abuts is always higher than the second belt, and the other workpiece guide plate is The surface where the end face of the workpiece in the workpiece feeding direction by the second belt abuts is higher than the second belt when the second belt is lowered, and the second surface when the second belt is raised. , The workpiece is held on the workpiece guide plate and transported to the next workpiece guide plate by a combined operation of raising and lowering and rotating the second belt. Yes, that is, two workpieces can be stored on the second belt. It can be. In this manner, two workpieces can be held on the second belt, and further, the workpiece is supplied to the assembling apparatus by the sub-conveyor for the loader, and the workpiece is discharged from the assembling apparatus. Since the transfer is performed by the unloader sub-conveyor, the transfer time to the assembling apparatus can be reduced.

Example An example of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a main conveyor 20 for transporting the workpiece 11 is provided in front of the assembling apparatus 10. On both sides of the processing tool 10a of the assembling apparatus 10, sub-conveyors 45 and 46 for the loader and unloader are arranged such that one end of the processing tool 10a intersects and is orthogonal to the main conveyor 20. In addition, the workpiece 11 (11b) sent from the loader sub-conveyor 45 is sent directly below the tool 10a below the tool 10a of the assembling apparatus 10 between the loader and unloader sub-conveyors 45 and 46. At the same time, the unloader sub-conveyor 46 is located directly below the processing tool 10a.
A transfer device 12 is provided for sending to the hopper.

Here, in the embodiment, the wire bonding apparatus is illustrated as an example of the assembling apparatus 10, but the embodiment is not limited to this. Since this wire bonding apparatus has a well-known structure and is not directly related to the gist of the present invention, further description is omitted here. Although the transfer device 12 is shown as a square block, for example, the transfer device shown in Japanese Patent Application Laid-Open No. 60-67308 is used. In this case, except for the magazines for the loader and the unloader disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 60-67308, sub-conveyors 45 and 46 for the loader and the unloader of the present embodiment are arranged in the magazines for the loader and the unloader. Needless to say. Since the transfer device 12 is not directly related to the gist of the present invention, further description is omitted here.

Next, the structure of the main conveyor 20 and the sub-conveyors 45 and 46 will be described.

Main Conveyor 20 (See FIGS. 1, 2 and 4) A conveyor base 22 is fixed on a gantry 21, and a main conveyor base 23 is fixed on the conveyor base 22.
Two support plates are kept on the main conveyor base 23 at a constant interval.
24, 25 are fixed in parallel, and relief plates 24, 25 are formed with relief grooves 24a, 25a for sub-conveyors 45, 46 to be described later to be disposed crossing each other. A motor 26 is fixed to the support plate 24 on the lower right side from the center.
A pulley 27 is fixed to the output shaft. Also support plate 24
A drive shaft 29 is rotatably supported at a position above the motor 26 on a support plate 28 fixed to the main conveyor table 23 outside the support plate 24. The pulley 30 is fixed to a portion protruding from the pulley. The timing belt 31 is hung on the pulleys 27 and 30.

Pulleys 32 are fixed to the drive shaft 29 inside support plates 24 and 25, respectively. A pulley 33 is rotatably supported on the upper side of the support plates 24 and 25 at the same level as the pulley 32. Also, the escape grooves 24a, 2 of the support plates 24, 25
Each of the pulleys 34 is rotatably supported on the inner portion below 5a. Further, pulleys 35 are rotatably supported on the left and right inner sides below the support plates 24 and 25, respectively. A belt 36 is hung on the pulleys 32-35.

Therefore, when the motor 26 is rotated in the direction of arrow A,
The drive shaft 29, that is, the pulley 32 rotates in the direction of arrow B via the pulley 27, the timing belt 31, and the pulley 30, and the belt 36 is fed in the direction of arrow C.

On the lower surface side of the belt 36 above the center of the support plates 24 and 25, a slack preventing plate 37 for preventing the belt 36 from slacking.
Are arranged. A support shaft 38 is fixed above and to the left of the center of the support plate 24, and a stopper 39 having one end extending above the belt 36 is rotatably supported on the support shaft 38. The stopper 39 has a horizontal bent portion 39a, and the solenoid 40 is fixed to the support plate 24 so that the operating portion of the solenoid 40 abuts on the lower surface of the bent portion 39a. A sensor 41 is fixed inside the support plate 25 in order to detect the workpiece 11 abutting on the stopper 39.

The sub-conveyors 45 and 46 (FIGS. 1, 3, 6 to 9)
(Refer to the figure) Sub conveyor 45 for loader and sub conveyor for unloader
Since it has almost the same structure as 46, the following FIGS.
The loader sub-conveyor 45 shown in an enlarged view in the figure will be described.

A sub-conveyor table 47 is fixed on the conveyor table 22 shown in FIG. As shown in FIGS. 6, 8, and 9, a rotary shaft 48 is rotatably supported above the center of the sub-conveyor table 47, and four pulleys 4 are mounted on the rotary shaft 48.
9, 50, 51 and 52 are fixed. As shown in FIGS. 7 and 8, a fixed shaft 53 is fixed to a portion of the sub-conveyor table 47 directly below the rotary shaft 48. The fixed shaft 53 has four swing blocks 54 and 55. , 56, 57 are rotatably supported via bearings 58. The oscillating blocks 54 and 55 extend downward in FIG. 7 and extend to the left in FIG. 8, while the oscillating blocks 56 and 57 extend upward in FIG. 7 and to the right in FIG. It is growing. Rocking blocks 54, 55 and
Intermediate blocks 59 and 60 are fixed to 56 and 57, respectively, and four pulley support arms 61 and 62 are fixed to the intermediate blocks 59 and 60, respectively. Pulley support arm 61,
As shown in FIGS. 1, 6, and 8, end pulleys 63 to 66 and 67 to 70 are rotatably supported on the 62, respectively.

Then, belts 71 are wound around the pulleys 63 and 49, 64 and 50, 65 and 51, 66 and 52, respectively.
And 50, 69 and 51, and 70 and 52 also have a belt 72 respectively. As shown in FIG. 9, a motor 73 is fixed below the sub-conveyor table 47, and a pulley 74 fixed to an output shaft of the motor 73 and the pulley 49 have a belt.
75 is hung.

Therefore, when the motor 73 rotates forward, the pulley 74 and the belt
Since the pulleys 49, 50, 51, and 52 rotate via 75, the belts 71 and 72 are fed in the direction of arrow D as shown in FIG.
When the motor 73 rotates in the reverse direction, the belts 71 and 72 are rotated in the direction of arrow E in the reverse direction. That is, in the loader sub-conveyor 45, the belts 71 and 72 are rotated in the direction of arrow D, and in the unloader sub-conveyor 46, the belts 71 and 72 are rotated in the direction of arrow E and used.

As shown in FIGS. 7, 8, and 9, the swing blocks 54, 57 have downwardly extending tongue pieces 54a, 57a, and the tongue pieces 54a, 57a each have a receiving screw. 80 is screwed. Actuating parts of cylinders 81 and 82 with a speed controller fixed to the sub-conveyor table 47 are provided facing the receiving screw 80, and the receiving screw 80 is swung so as to press against the operating parts of the cylinders 81 and 82. The moving blocks 54 and 57 are biased by a spring 83. Detecting plate 8 is provided for swing blocks 54 and 57.
4 and 85 are fixed, and sensors 86 and 87 are fixed to the sub-conveyor table 47 so as to sandwich the detection plates 85 and 85.

Therefore, when the operating portions of the cylinders 81 and 82 operate and protrude, the swing blocks 54 and 57 are fixed via the receiving screws 80 to the fixed shafts 53.
, Whereby the pulley support arms 61 and 62 rotate through the intermediate blocks 59 and 60, and the pulleys 63 to 66
Falls in the direction of arrow F, and the pulleys 67 to 70 rise in the direction of arrow G. Conversely, when the operating portions of the cylinders 81 and 82 are operated and retracted, the pulleys 63 to 69 move upward in the direction of arrow H and the pulleys 67 to 70 move downward in the direction of arrow I.

As shown in FIG. 6, FIG. 7, and FIG. 8, two workpiece guide plates in which escape grooves 90a and 91a for allowing the pulley support arm 62 to escape are formed in the portion of the pulley support arm 62. 9
0 and 91 are arranged at right angles to the belt 72. One workpiece guide plate 90 is fixed to the sub-conveyor table 47,
The workpiece is formed lower than the other workpiece guide plate 91 and
Also serves as 11 stops. Here, as apparent from the operation described later, one of the workpiece guide plates 90 is
The surface with which the end face of the workpiece in the workpiece feeding direction by 72 abuts is disposed so as to be higher than the belt 72 when the belt 72 is lowered, and to be lower than the belt 72 when the belt 72 is raised. The workpiece guide plate 91 on the end side of the pulley support arm 62 is arranged such that the surface of the workpiece 72 that is in contact with the workpiece end face in the workpiece feeding direction by the belt 72 is always higher than the belt 72. The other workpiece guide plate 91 is slidably provided on a shaft 92 fixed to the one workpiece guide plate 90. Therefore, the workpiece guide plate 91 is slid according to the width of the workpiece 11, and the workpiece guide plate 91 is fixed to the shaft 92 with screws (not shown).

A push angle 93 is slidably provided on the shaft 92, and the push angle 93 is fixed to the shaft 92 with screws (not shown). A pusher frame 94 is fixed to the pusher angle 93, and a cylinder 95 is fixed to the pusher frame 94. A push arm 96 is fixed to the operating rod of the cylinder 95, and the push arm 96 is provided so as to move along a detent plate 97 fixed to the push frame 94.

The members indicated by the component numbers 90 to 97 are provided only on the loader-side sub-conveyor 45, and are not provided on the unloader-side sub-conveyor 46. Instead, an upper plate 98 supporting the workpiece 11 sent from the transfer device 12 shown in FIG. 1 is fixed to the sub-conveyor table 47 on the unloader-side sub-conveyor 46 as shown by a two-dot chain line. .

FIG. 10 shows an application example in which a plurality of transfer apparatuses having the above-described configuration are combined. Each bonding device 12A, 12B ...
The workpiece 11 is sent out from the loader magazine 13 to
The workpiece 11 processed by each of the bonding devices 12A, 12B,... Is stored in the unloader magazine 14. Here, for the sake of explanation, the units are sequentially numbered with A, B, C,.

Next, the operation of the transport device having the above configuration will be described. Now, a case where a request for the workpiece 11 is received from only the second loader sub-conveyor 45B shown in FIG. 10 will be described. The stopper 39 shown in FIG. 1, FIG. 4, and FIG.
Is in a state where it is always rotated below the illustrated state and is located below the level of conveyance by the belt 36. Then, when a request signal for the workpiece 11 is output from the loader sub-conveyor 45B, the workpiece 11 is sent out from the loader magazine 13 onto the main conveyor 20A, and the solenoid 40 of the main conveyor 20B operates. When the solenoid 40 operates, the stopper 39 moves up around the support shaft 38,
The state is as shown in the figure. Therefore, the workpiece 11 sent out from the loader magazine 13 is conveyed in the direction of arrow C by the belt 36 of the main conveyor 20A, and is simply passed on the main conveyor 20A and sent to the main conveyor 20B.
When sent by the main conveyor 20B, the workpiece 1
1 contacts the stop 39.

When the sensor 41 provided on the main conveyor 20 shown in FIG. 1 detects the workpiece 11, the motor 73 of the loader sub-conveyor 45B shown in FIGS. Act to protrude. When the motor 73 starts, the belts 71 and 72 operate in the direction of arrow D as described in the sub-conveyors 45 and 46. When the cylinder 81 operates, the pulleys 63 to 66 move up in the direction of the arrow H shown in FIG. 8, as described in the sub-conveyors 45 and 46. That is, the pulley 6 of the loader sub-conveyor 45B
3 to 66 rise from the state shown in FIG. 4, and the workpiece 11 stopped on the stopper 39 as described above rides on the belt 71 of the sub-conveyor 45B for the loader and rises from the belt 36 of the main conveyor 20. Can be Then, the workpiece 11 is fed in the direction of arrow D by the movement of the belts 71 and 72, and comes into contact with the workpiece guide plate 90 shown in FIG. Workpiece guide plate
When the workpiece 11 is located between 90 and 91, the workpiece
Numeral 11 holds a state in which the workpiece abuts on the workpiece guide plate 90. In FIG. 1, reference numeral 11a denotes the workpiece 11 in contact with the workpiece guide plate 90, and reference numeral 11b denotes the workpiece 11 between the workpiece guide plates 90 and 91. That is, the loader sub-conveyor 45 (45B)
On the upper side, two workpieces 11 can be held.

When the workpiece 11 exists between the workpiece guide plates 90 and 91, the rotation of the motor 73 stops and the cylinder 81 retracts. As a result, the belts 71 and 72 stop, and the pulleys 63 to 66 descend in the direction of arrow F shown in FIG.
Is located below the transport level of the belt 36 of the main conveyor 20. At the same time, the solenoid 40 is also turned off, and the stopper 39 is located below the level of conveyance by the belt 36.

If there is no workpiece 11 between the workpiece guide plates 90 and 91, or if the workpiece 11 is sent out from the workpiece guide plates 90 and 91, the rotation of the motor 73 continues or starts, and the belts 71 and 72 rotate.
Moves in the direction of arrow D, and the cylinder 82 operates to raise the pulleys 67 to 70 in the direction of arrow G. Accordingly, the belt 72 is positioned higher than the workpiece guide plate 90, and lifts the workpiece 11 positioned on the workpiece guide plate 90. The workpiece 11 is sent by the belt 72 and abuts the workpiece guide plate 91. Then, when the motor 73 stops, the cylinder 82 retracts, and the pulleys 67 to 70 are
Descend in the direction. Thereby, the workpiece 11 on the belt 72 is
Are placed on workpiece guide plates 90 and 91.

Upon request from the assembly device 10, the cylinder 95 operates,
The workpiece 11 on the workpiece guide plates 90 and 91 is sent out to the transfer device 12 side by the pusher arm 96. Then, it is fed one pitch intermittently by the transfer device 12, and is processed by the assembling device 10 each time. Workpiece that has been processed
11 is a sub-conveyor for unloader shown in FIG. 3 and FIG.
When it is sent to the upper plate 98 of the 46, that is, to the position shown by the workpiece 11c in FIG. 1, the motor 73 of the unloader sub-conveyor 46 rotates and the belts 72 and 71 move in the direction of arrow E,
The cylinder 82 operates and the pulleys 67 to 70 move up. Pulley
When 67-70 rises, the workpiece 11 on the upper plate 98 is moved to the belt 72.
Lift with. As a result, the workpiece 11 is
To stop in contact with the side wall of the support plate 24. Thereafter, the cylinder 82 retracts and the pulleys 67 to 70 descend.

Then, when the workpiece 11 is not flowing on the main conveyor 20 and the unloader magazine 14 is in the receiving position, the cylinder 81 operates, the pulleys 63 to 66 are raised, and the workpiece 11 is moved. Lift up above the support plate 24. Thereby, the workpiece 11 is sent in the direction of arrow E by the belt 71,
It contacts the inside of the support plate 25. Thereafter, the cylinder 81 retracts and the pulleys 63 to 66 descend. As a result, the workpiece 11 is placed on the main conveyor 20, conveyed by the main conveyor 20, and stored in the unloader magazine 14.

In the above embodiment, the sub-conveyors 45 and 46 are disposed orthogonal to the main conveyor 20, but may be disposed so as to cross diagonally. Also the main conveyor 20
And the sub-conveyors 45 and 46 cross each other and
In the figure, a sub-conveyor 45 above the main conveyor 20,
46 is arranged, but conversely, sub-conveyors 45 and 46
The main conveyor 20 may be arranged above the main conveyor.

[Effects of the Invention] According to the present invention, a rotating shaft rotatably supported substantially above the center of the sub-conveyor table, a plurality of driving pulleys fixed to the rotating shaft, A fixed shaft fixed to a sub-conveyor base below the rotary shaft, a first swing block rotatably supported by the fixed shaft and extending from the fixed shaft to the main conveyor side; And a second swing block extending from the fixed shaft in a direction opposite to the first swing block, and a first swing block fixed to the first swing block and a second swing block fixed to the first swing block. A second pulley supporting arm, first and second driven pulleys rotatably supported on ends of the first and second pulley supporting arms, respectively, facing the driving pulley; Pulley and the first and second driven pulleys First and second belts hung on the shaft, a motor for driving the rotating shaft, and first and second drive means for independently swinging the first and second swing blocks. , The size and cost of the apparatus can be reduced.

The main conveyor is in one row, and the sub-conveyor is
A loader sub-conveyor for supplying a workpiece to the assembling apparatus, and an unloader sub-conveyor for discharging the workpiece from the assembling apparatus, wherein the loader sub-conveyor includes:
Two workpiece guide plates are arranged at right angles to the second belt so that two workpieces can be temporarily held in the second belt portion, and one of the second workpiece guide plates is provided on the second belt. The work piece guide plate on the end side of the pulley support arm of the second
The surface on which the end face of the workpiece in the workpiece feeding direction by the belt is in contact is always disposed at a position higher than the second belt, and the other workpiece guide plate is provided with the workpiece by the second belt. The surface in contact with the end face of the workpiece in the feed direction is arranged to be higher than the second belt when the second belt is lowered, and to be lower than the second belt when the second belt is raised. As a result, the configuration can be simplified and the space can be reduced, and the transport time to the assembling apparatus can be reduced.

[Brief description of the drawings]

FIG. 1 is an overall schematic configuration plan view showing one embodiment of the present invention,
FIG. 2 is a right side view, partially in section, showing the relationship between the main conveyor and the processing device in FIG. 1, FIG. 3 is a right side view showing the relationship between the sub-conveyor and the processing device in FIG. 1, and FIG. FIG. 5 is a left side view showing a stopper provided on the main conveyor, FIGS. 6 to 9 show a sub-conveyor, FIG. 6 is a partial sectional plan view, and FIG. The figure is the same plan view as Fig. 6 showing the fixed shaft section in cross section, Fig. 8 is a right side view, Fig. 9 is a front view, and Fig. 10 is an application using a combination of a plurality of transfer devices according to the present invention. It is a top view showing an example. 10: Assembly equipment, 11: Workpiece, 20: Main conveyor, 45: Sub conveyor for loader, 46: Sub conveyor for unloader, 4
7: Sub conveyor base, 48: Rotary shaft, 49-52: Driving pulley,
53: fixed shaft, 54, 55: first swing block, 56, 57: second swing block, 61: first pulley support arm, 62: second pulley support arm, 63-66: second 1 driven pulley, 67-7
0: second driven pulley, 71: first belt, 72: second belt, 73: motor, 81: first driving means, 82: second driving means, 90, 91: workpiece Guide plate

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kazuo Sugiura 2-51, Inahei, Musashimurayama-shi 1-share Shinkawauchi (72) Inventor Takeshi Hasegawa 2-51, Inahei, Musashimurayama-shi 1-share Shinkawauchi Co., Ltd. (72) Inventor Kuniyuki Takahashi 2-51-5 Inahira, Musashimurayama-shi Shinkawauchi Co., Ltd. (72) Inventor Morihiro Kada 22-22 Nagaikecho, Abeno-ku, Osaka City Sharp Corporation Inventor Toshihiro Morishima 22-22 Nagaikecho, Abeno-ku, Osaka City Inside Sharp Corporation (72) Inventor Toshiharu Seko 22-22-22 Nagaikecho, Abeno-ku Osaka City Inside Sharp Corporation (56) References Tokuho Sho 55-22215 (JP, B2) Jikken 48-18788 (JP, Y1)

Claims (1)

(57) [Claims] 1. A main conveyor for transporting a workpiece, and a sub-conveyor arranged so that one end thereof crosses and faces the main conveyor, and supplies and discharges the workpiece to an assembling apparatus. A crossing and facing portion of the main conveyor and the sub-conveyor has a rotating shaft rotatably supported substantially above the center of the sub-conveyor pedestal in a transfer device configured such that one is lower than the other. A plurality of driving pulleys fixed to a rotating shaft, a fixed shaft parallel to the rotating shaft and fixed to a sub-conveyor base below the rotating shaft, and rotatably supported by the fixed shaft; A first swing block extending from the shaft toward the main conveyor, and a second swing block rotatably supported by the fixed shaft and extending from the fixed shaft in a direction opposite to the first swing block. And before First and second pulley support arms fixed to first and second swing blocks, respectively, and rotatably respectively at ends of the first and second pulley support arms facing the drive pulley. First and second driven pulleys supported by the drive pulley and the first
A first and a second belt wound on a second driven pulley, a motor for driving the rotating shaft, and a first for independently swinging the first and second swing blocks.
And a second driving means, wherein the main conveyor is
In the row, the sub-conveyor includes a loader sub-conveyor for supplying a workpiece to an assembling apparatus, and an unloader sub-conveyor for discharging the workpiece from the assembling apparatus. 2 on the belt part 2
Two workpiece guide plates are disposed at right angles to the second belt so that the two workpieces can be temporarily held, and one of the second pulley support arms is provided at an end side thereof. The workpiece guide plate is arranged such that a surface with which the end face of the workpiece in the workpiece feeding direction by the second belt abuts is always located at a position higher than the second belt, and the other workpiece guide plate is The surface where the end face of the workpiece in the workpiece feeding direction by the second belt abuts is higher than the second belt when the second belt is lowered, and is higher when the second belt is raised. A transport device, wherein the transport device is arranged to be lower than the second belt.